Electric variable speed drive



FIG. 1 is a front perspective view of an electric variable speed drive showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The Figures include an illustration of the logo, “SEW,” and other written matter shown in broken lines, which forms no part of the claimed design.

The broken lines and lightened areas within the drawings depict unclaimed environmental subject matter. 

The ornamental design for an electric variable speed drive, as shown and described. 